CMMG Dissent MK4 300 Blackout 10.5″ – Monolithic, Suppressor-Ready, Direct

Not yet rated

(0)

CMMG 30AC278MB DISSENT MK4 300BLK 10.5″ MB

Some cartridges require longer barrels to realize their full ballistic capabilities, but not 300 Blackout. Outfitted with a 10.5 barrel, this DISSENT takes full advantage of almost any 300BLK loading you can think of while remaining ultra-compact and portable by eliminating the buffer system found on a conventional AR15. At the rear is a 1913 picatinny rail end plate allowing shooters to pick a folding pistol brace or stock* that suits their needs and style. Multiple Cerakote finishes ensures your DISSENT will always stand above the crowd. 300 BLK is an incredibly adaptable cartridge with different loadings for specific uses, like suppressed. With the adjustable gas block on each 300 BLK DISSENT you can fine tune the gas system to best suit the supersonic or subsonic ammo loadings you like best. TriggerTechs AR-D trigger was developed in collaboration with CMMG to be fully optimized for use with DISSENT firearms and upper receiver groups. With a 4 lb pull weight, the AR-D trigger showcases a light, repeatable break. CMMG does not guarantee optimal DISSENT functionality with Mil-spec or other aftermarket triggers.

$1,705.99

5 in stock

Purchase & earn 1,706 points!

CMMG 30AC278MB DISSENT MK4 300BLK 10.5″ MB — Built for Silent Precision & Tactical Power 🔥

Looking for a cutting-edge 300 Blackout pistol that blends innovation, reliability, and performance? The CMMG DISSENT MK4 300BLK 10.5″ MB delivers — and then some. ⚙️

This direct impingement-free platform features CMMG’s revolutionary Compact Action with Radial Delayed Blowback, offering ultra-smooth cycling and reduced recoil. Whether you’re running suppressed or unsuppressed, the DISSENT is built to handle it all — quietly and confidently. 💥

Key Features:

  • Caliber: .300 Blackout — ideal for CQB & suppressed use
  • Barrel: 10.5″ Medium Taper 4140CM, SBN finished — accuracy meets durability
  • Action: Radial Delayed Blowback — smoother recoil, cleaner cycling
  • Handguard: 9.6″ M-LOK free-float — ready for lights, lasers & grips
  • Trigger: ZEROED™ Drop-In Trigger — crisp, responsive break
  • Charging: Rear Charging Handle — streamlined profile, no side protrusions

At just the right length for home defense, truck carry, or range days, the DISSENT MK4 is a tactical dad’s dream — compact, modular, and built to perform. 💪

Whether you’re running subsonics through a suppressor or pushing heavy rounds for max impact, this pistol eats it all with confidence.

➡️ Don’t settle for ordinary — take your 300BLK game to the next level with the CMMG 30AC278MB DISSENT MK4. Ready to dominate your setup?

🚚 Ships fast. Runs hard. Built for real-world use.

UPC

810097509672
Manufacturer

CMMG
Manufacturer Part Number

30AC278MB
Sights

Optic Ready
Safety

Lever Action
Capacity

30 + 1
Caliber/Gauge

.300 AAC Blackout
Barrel Length

10.50"
Action

Semi-Auto
Model

DISSENT
Product Type

AR

Reviews

There are no reviews yet.

Be the first to review “CMMG Dissent MK4 300 Blackout 10.5″ – Monolithic, Suppressor-Ready, Direct Impingement Beast”
Welcome to DFC Arms, in order to browse our site you must be at least 18 years of age.
Are you at least 18 years old?
No